Air and gas mixing device for internal combustion engines



30, 1932- A. CALBERG ET AL 1,874,894

. AIR AND GAS MIXING DEVICE FOR INTERNAL COMBUSTION ENGINES Filed June 25,- 195-1 2 Sheets-Sheet l Jdey fl rmnnK Jaw dz flltorney Invenior g- 30, 1932- A. CALBERG ET AL 1,374,394 7 AIR AND GAS MIXING DEVICE FOR INTERNAL COMBUSTION .EflG'INES Filed June23. 1931 2 Shets-Sheet z I nve ntor xfzfon/ (awe-7y flermann, Kfi

/7 J 204mm Patented Aug. 30, 1932 v unrrsn sTArEsreTENr ANTON ceLBERe, or cRn roRnnNn HERMANN KJfRINZyOF IiiNDEn-wNEw JERSEY AIR AND GAS MIXINGDEVIQE} roe INTERNALQGOMBUSTION ENGINES 1 Application filed June 23, mai. Seria1 1\To. 546,392. -Q

This invention relates to a device for mixing air and gas prior to the feeding of the mixture to the combustion chambers of an internal combustion engine, and has as its primary'object to subject the air and gas to' a whirling motion for thoroughly mixingthe same. i

A still further object of the invention 1s to provide a device of the character above 7 mentioned which may be mounted in the manifold of the internal combustion engine at the intake side thereof and directly above the butterfly valve of the carbureter. Other objects and advantages of the invention will be apparent from a studyof the following description, taken in connection with the accompanying drawings wherein:

Figure 1 is a vertical sectional elevational view taken through the device, the same being shown as mounted in the intake manifold of an internal combustion engine.

Figure 2 is a transverse sectional elevational view taken through the device adjacent one end thereof. 7

Figure 3 is an elevational view of a casing forming part of the invention.

' Figure a is a bottom plan view of the cas-. ing.

propellers.

Figure 6 is a side elevational View thereof. Figure 7 is a top plan view of another of the propellers.

F igureS is a side elevational view thereof. *igure 9 is an elevational View of a modified. form of propeller casing.

Figure 10 is a transverse sectional View there may be employed the casing 5 shown in Figure 9 and this latter there is a which is formed of wire screen mesh, form of easing being for use where suction intake in the manifold, and located in the vicinity where the Figure 5 is a top plan view of one of the device is pncd',su h suction intake used for vacuum tank. y, c s In Figure/11 have shown the device employin'g the casing 5, wherein will be seen that the same is located within the'fiange 6 of an intake manifold, aportion of which is shown in said figure 'lhe tube 5 is lo'cated in longitudinal alinement withthe outlet end shown in Figure 1, T the casing willbel located t bov e the, butter fiy valve of the carbureter fThe casing is opened at each end thereof, and at the lower endis provided with an annularseries of spaced radial tongues or flanges 8-ieceived in notches 9 provided in the coupling flange! of thecarbureter, aportionof which is also.

us-it 'will 'bfseen that of the manifold 6 atQthe' joint between "the.

manifold and 'carbureter, s See Figure 1),

v Arranged at the upper and lower end ofthe casing 55, is a spider 10, a bearing for accommodating aportio'nfof] a fan shaft 11 thatiexten'ds verticallyjandlongitudinally to the "casing 5, and which atits upper end contacts theiupper wall of the intake manifold;

Mounted onthe shaft 11" for rotation relative thereto, and located within the casing 5, are a plurality or propellers 12 and 13, each of which com-' prises a hub having a plurality, preferably four blades radiating therefrom. The hub of each propeller is rotatably confined between upper and lower collars 14 keyed to the '1 shaft 11.

Preferably three propellers are'used, including upper and lower propellers 12 and an intermediate propeller 13. The blades of the propeller 13 are pitched oppositely to the pitch of the blades of the propellers 12 so that, propellers 12 being adapted to rotate in a clockwise direction, propeller 13 will rotate in an opposite or counterclockwise direction.

In operation, with the Figure 1, it will be seen that during operation of the motor, the suction of the motor will cause the propellers to rotate and the mixture of air and fuel being drawn from the carbureter through the intake manifold will be subjected to the action of the propellers,

the hub of which forms of vertically spaced fan parts located in vice being operable by suction requires'no."

manual control, and is automatic in operand the resultant whirling motion ofthe mixture will cause a thorough mixing of theair and gas. 7 v

In employing three propellers, it will be seen that consecutive propellers or fans rotate in opposite directions, thus insuring a thorough mixing of the air and gas fumes drawn from the carbureter. Further, the deation providing at all times vfor 'ahsupply of the fuel in a thoroughly mixed state.

Even though I have herein shown and described the preferred embodiment of the invention, it is to be understood that-the same is susceptible of further "changes, modifications and improvements coming within the scopeofthe appendedclaim.

v Having thus described my invention, what 20 i I claim as new is: g e

A mixing device of the kind described comprisingacylinder open at its ends and adapt.'-

ed for'disposition within the inlet pipe of an intake manifold, a spider mounted in the cylinder at each end of the latter, a shaft sup ported by said spiders and having an upper end extendinginto the intake manifold and engagedwith the top wall of said manifold, three vertically spaced propellers rotatably mounted on said shaft,-the uppermost propeller being disposed a material distance inwardly from the upper end of said cylinder;

' and said cylinder'at itslower end being provided with a circular series of spaced ears adapted to be clamped'between the confronting flanges of a carbureter outlet pipe and the said inlet pipe of the manifold.

I In testimony 'whereoflwe aflix our signatures.-

, ANTON OALBERGQ HERMANN K. 'PRINZ. 

